JP2002521597A - A rail that guides a vehicle along a course by a pulley, particularly with a guide rail with a detachable groove for a guiding device with an inclined pulley - Google Patents

Abstract

A guide rail for guiding a pair of angled or horizontal guide wheels (17,18) of a guide assembly. The guide rail comprises a rail base (2), a rail head (4), and a rail web (3) interconnecting the rail base (2) with the rail head (4). The rail head (4) has at least one zone facilitating engagement and disengagement of the guide wheels with the guide rail. The zone has a narrowed area in which the guide head (4) has a narrower transverse width dimension which is less than the larger transverse width dimension on opposite sides of the zone and less than a normal engagement spacing of the guide wheels from one another such that the pair of guide wheels (17,18) are only movable vertically into and out of engagement with the guide in the zone while the pair of guide wheels (17,18) are prevented from moving vertically into and out of engagement with the guide rail, relative to the guide rail, by the larger transverse width dimension of the guide head (4).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] A rail that guides a vehicle following a course by a pulley includes a type of a section of the pulley,
There are various technical forms whose conditions differ depending on the inclination and shape and their general structure.

[0002] The present invention relates to an inclined pulley and a water-smooth vehicle that function as a pair to surely guide the vehicle along an attached rail. The present invention is applied to a plurality of pulleys inclined downward in a V-shape, each of which has a peripheral shoulder conventionally called a flange, such as a railway wheel, but is limited thereto. Not done.

In order to ensure guidance, both pulleys of a pair of inclined pulleys are in rotational contact with the side surface of the guide rail, and both pulleys may fasten the side surface of the rail.

There is a need for improved quality and safety of guidance. In prior practice, quality and safety were further improved by applying stresses such that the pulleys were in close rotational contact with the sides of the guide rail. It is often the case that a vertical load is pre-loaded, mainly for the purpose of preventing accidental and temporary lifting during operation.

[0005] In such a conventional practice, the lock is removed temporarily by increasing the distance between the pulleys, using the elasticity restoring force when the pulley approaches, or pulling up to release the lock. This is done by increasing the distance between the pulleys. Such operations include means for expanding the pulleys sufficiently to free them from the control of the pulleys on the rail, and the structure and structure of the pulley so that it can be removed with a single vertical force. is necessary.

[0006] The use of a pulley in which the peripheral projections or a part of the body moves below the line of the edge of the rail head allows a marked improvement in the quality and safety of the guidance. What is mainly treated here is a flanged pulley whose flange is guided below this edge by the inclined position of the traveling of the flanged pulley during traveling. Further, it may be a simple pulley that runs on the abdomen of the rail and under the head of the rail, for example.

[0007] If guidance is reliably performed by these pulleys, the projecting structure of the rail, that is, the side surface of the rail head, will prevent the pulley from lifting. In order to lift the pulley, it is necessary to change the inclination of the pulley, to increase the distance between the pulleys, and to provide a means for simultaneously or continuously performing both movements.

[0008] These functions are in fact performed by more complex implementations of guidance devices and by the addition of supplementary functions in difficult areas where the available volume is small.

[0009] Even if the creators of this kind of product are solely concerned with simplifying the means and functions, especially while respecting reliability and safety, public transportation and private enterprises may demand it. It is necessary that a plurality of conditions be satisfied at the same time in a proper guidance.

First of all, purchase and operation costs, which are considered important condition factors in purchase.

[0011] Next, the reliability and safety assurance that both pulleys do not physically come off the rails during the guidance operation.

Lastly, the ease of operation that makes the operation of removing the pulley from the rail and the subsequent operation of lifting the entire guidance device simple and quick.

The present invention is particularly useful, but not exclusive, when using a pair of pulleys with a V-shaped and flanged pulley to operate and remove the rails when stopped or in operation. It is an object to provide an advantageous solution in which the pulley can pass freely in operation.

Therefore, the present invention provides a guide rail for a pair of inclined guide pulleys that uses a pair of pulleys to capture the side surface of the rail, and includes a flange that ensures that each pulley does not come off the rail. The rail is locally provided with areas to be removed from the rails for pulleys that receive the force to lift, and it is possible for pulleys that travel in these areas to travel normally. It is a guide rail.

Many advantages of the present invention relate to simplification of the configuration of the entire guidance system, reliability and simplification of the operation of attaching and detaching pulleys and rails, and reliability and simplification of a track circuit for automatic guidance.

First of all, since the means for increasing the distance between the two pulleys is eliminated, the entire guiding device becomes simpler.

Next, the operation of attaching and detaching the pulley to and from the rail simply generates a downward or upward vertical force,
It can be done with a single addition to a particular area that is not too wide with grooves, such that the grooves are visible or can be found by any other means.

Furthermore, the use of a collared pulley and a limited number of moving parts ensures reliability.

[0019] Furthermore, since the guiding mode can be changed only by inserting the grooved rail or a section of the rail into any arbitrary area, it is possible to assume a special area specially prepared for the attaching / detaching operation. It becomes unnecessary.

Finally, the realization of the grooves is simple, they have only a small depth and are of limited length, so that the width of the runway on which the pulley runs is reduced only slightly, It does not hinder the movement of the guide pulley.

[0021] Other features and advantages of the present invention will be discussed in the following description with reference to the accompanying drawings, but are not limited to that description.

FIG. 1 is a perspective view of a section of two grooved guide rails facing each other.

FIG. 2 is an enlarged perspective view of the rail of FIG. 1 in the area of the groove.

FIG. 3 is a cross-sectional view of the guide rail at the position of the groove.

FIG. 4 is a front view of two inclined guide sheaves and a grooved rail that come into contact with the rail during traveling.

FIG. 5 is a mixture of a front view and a cross-sectional view similar to FIG. 4, showing the guide pulley being removed upward.

FIG. 6 is an enlarged detail view of the cross section at the position of the groove, and shows an empty space for the flange to pass through.

FIG. 7 is a schematic perspective view showing a guide rail having a groove and an I-shaped cross section.

FIG. 8 shows a cross section of the guide rail of FIG. 7 at the position of one groove, showing the guide pulley in rotational contact with the rail abdomen.

FIGS. 9 and 10 are similar to FIGS. 7 and 8, respectively, but show a guide rail with a trapezoidal rail abdomen and a flattened top.

FIG. 11 is a cross-sectional view of a variant with a flat rail head and a flanged guide pulley.

FIG. 12 is an enlarged cross-sectional view of the modification shown in FIG. 11 at the position of the groove.

The guide rail according to the invention can take various technical forms. The general idea of the invention is to assume at least one lateral indentation in the outwardly open rail at the superstructure or rail abdomen on the local area of the rail, and to set the distance between the two pulleys. One of the guide pulleys can pass across the recess during the lifting motion of the arm supporting the pulley to prevent any movement of spreading or changing the slope. The length of these grooves can vary as the mounting or dismounting operation is performed during standstill or during operation.

The guide rail of the present invention has various technical forms of the main body 1. The body always consists of the components normally used for rails, namely the base plate 2 with the underlying lower plane. This bottom plate is extended by a rail abdomen 3, at the end of which a rail head 4 is provided.

The shapes of the bottom plate 2 and the rail abdomen 3 are relatively ordinary.

Conversely, the shape of the rail head in the first variant FIGS. 1 to 6 is considered completely original.

These shapes are constituted by two symmetrical sides 5 and 6 bulging convexly,
The two side faces are connected linearly at their upper part by a flat or lightly convex bulging linear connecting area 7 forming the center of the rail tread 8.

In the space, the bulge of each side surface is constituted by a continuation of two slopes having opposite slopes, and the two slopes are separated by a centrally protruding central projection 9 or 10. Desirably, these slopes and the central projection are curvedly coupled between and adjacent to each other by a rounded portion 11 or 12 that linearly expands into space.

The upper part of each side is formed in accordance with an upper running slope 13 or 14 which respectively constitutes a running track for one of the pulleys. Each side surface extends downwardly via a bulging central projection 9 or 10 followed by an oblique lower slope of a stop 15 or 16 which forms a side projection on each side. Upper running slope 13
Or the inclination of 14 is opposite. Each lower slope of the stop, at its end,
It has a connecting portion that forms a joint with the rail abdomen 3. Each runway along the rotating upper slope 13 or 14 slopes downwards toward the outside of the rail, while the lower slope 15 or 16 of the stop slopes upwards toward the outside of the rail. ing.

Although not particularly limited, the structure of this rail is particularly suitable for guidance, and the guidance is made up of a pair of pulleys 17 and 18 that are horizontal or V-shaped inclined. The pulley is pointed downwards and is provided with collars 19 and 20, that is, the large outer surface of the pulley has an outer annular shoulder, whereby the rail head 4 The contact surface of the stop with the side surface of the stop is configured, thereby limiting sideslip. This construction prevents the pulley from shifting in the transverse or vertical direction, as well as accidental lifting of the entire guidance system.

These flanges 19 and 20 are respectively provided on the lower surface of the rail, that is, on the lower slope 15
Alternatively, it is possible to make a rotational leaning contact with 16.

According to the preferred embodiment shown in the figures, the structure of the convex bulge at the end of each side is complementary to the cross-sectional shape of the joint between the tread and the collar of each guide pulley. .

The guide sheaves 17 and 18 are supported by a group of guide devices (not shown) with mechanical support formed from liftable pivot arms.

An essential feature of the invention is that the location of the attachment / detachment area is specified, each of which is realized as at least one indentation on each side of the rail head 4.

More specifically, at least one, and preferably two, opposed grooves 2
1 and 22, each formed as one indentation or linear side cutout, the bottom 23 of which, although not necessarily, is flat, for example, the bottom of which is convex on the rail head 4. Are formed laterally in at least one mass on the side of the shape, with a limited depth, when raised, without facing, in particular without changing the appearance or inclination or spacing, two opposite pulley flanges It is important that the lower part of the 19 or 20 or both grooves be deep enough to pass through.

The depth of the groove leaves enough space above the rail head for the guide pulley to rotate without hindrance. Therefore, the depth of the groove should not significantly reduce the width of the runway of the pulley.

The bottom 23 of the groove may be flat or may be concavely rounded according to an opening shaped to allow the portion of the collar that moves vertically or laterally to the groove to pass vertically. May take on.

The flat-bottomed groove-shaped recess has two longitudinal ends, each of which has a gradual slope or a concave radius connecting to the side of the rail. Connected to the entry ramps 24 and 25 according to the ramped ramp surface.

The length of the bottom of each groove depends on its intended purpose. When performing the attachment / detachment work at the time of stopping, the length of the groove is as short as possible, that is, it is slightly more than the functional necessity for the flange to pass without changing the inclination of the pulley when lifting. Would be desirable.

When the attaching / detaching operation is performed during the operation, it is desirable to perform the attaching / detaching operation at a low speed, but the length of the groove is longer, and the length of the groove is in accordance with the stroke line followed during the ascent or descent time of the entire guiding device. It is important that the area of lifting or lowering of the guide arm is as limited as possible in the space.

If a lifting or pulling force is already applied shortly before reaching the groove,
It is conceivable to provide a shorter groove for the attaching / detaching operation.

According to the present invention, the groove reduces the width of the rail enough to allow the guide arm to be raised or lowered without having to change the inclination relative to the pulley or unlock each other. . If the width of the rails in these areas is minimal, a simple vertical movement will make it easy to remove or install the pulley in any case.

The limit trajectory at which the end of the pulley is lifted is marked by a vertical dashed line in FIG.

In a variant that detaches during operation, it is important to provide an exit slope for the groove, which is designed to act as a runway for the pulley as the pulley moves out of the groove. The same is true for the groove entrance. Of course, if performed during operation, the shape of the bottom of the groove must be adapted to its mounting and dismounting movement.

So far, mainly two opposing grooves have been discussed.
Of course, the present invention is also directed to variations of a single groove.

Various technical forms can be used for the cross section of the rail. Some of these various forms relate to well-known forms, and some so far relate to original forms.

For example, the guide rails shown in FIGS. 7 to 12 are I-shaped in cross section and have a flat rail head 26 of a type having a flat running tread, and another cross section is shown in FIGS. Other variations are shown that are generally the same, but differ slightly by the trapezoidal rail abdomen 27.

In rails of this type of cross section, single guide sheaves 28 and 29 run on the side of rail abdomen 3 or 27. In order to ensure guidance accuracy, it is advisable to apply stress to the pulleys by bringing the pulleys closer to each other.

When the cross section is I-shaped, the rail is horizontal, and when the cross section is the trapezoidal rail abdomen 27, it is inclined.

In these two variants, a groove is provided in the upper part of the flat tread 26 serving as the rail head, in the form of a transversely cutout at the recesses 30 and 31 arranged opposite to each other. Can be Contrary to the variant described above, in the first case up to the junction with the upper extension of the rail abdomen, and in the second case the innermost edge of each pulley in the running position upwards The depth of the groove can and must be extended to the point where it is projected vertically. This defines the remaining portion 32 of the rail head at right angles to the grooves 30 and 31.

Again, the entry and exit slopes and the bottom of the groove can also be curved, for example according to a concave radius, as shown in FIG.

An overall view of another variation of the flat rail head is shown in FIG.
As shown in FIG. This variant is used with guide sheaves 17 and 18 with flanges 19 and 20 similar to those already described.

Each guide pulley runs on the area of the upper ridge 33 or 34 of the adjacent area minimum side 35 or 36 of the flat rail head 26 realized in this variant formed as a flat tread. The guide pulley is a flange 19 or 20 of each guide pulley.
Are tilted to be below the lower ridge corresponding to the adjacent area minimum side surface 35 or 36, resulting in a similar difficulty of lifting as solved by the present invention.

As mentioned above, the presence of the grooves 30 or 31 allows the pulleys to be lifted while increasing the spacing between the pulleys and keeping the inclination unchanged.

The figure shows the relative depth of the groove, and the straight line shown by the broken line shows the limit trajectory for lifting the lower end of the flange during the lifting operation.

In this variant, the run of the pulley is no longer on the abdominal side of the rail, but on the side of the flat tread 26 rounded for this purpose.
And 36 on the upper edge.

Many other technical forms are conceivable. I cannot show everything. All of them are included in the frame of the present invention as long as they have a detachable groove.

[Brief description of the drawings]

FIG. 1 is a perspective view of a section of two grooved guide rails facing each other.

FIG. 2 is an enlarged perspective view of the rail of FIG. 1 in the area of the groove;

FIG. 3 is a cross-sectional view of the guide rail at the groove position.

FIG. 4 is a front view of two skewed guide pulleys and grooved rails that come into contact with the rails during running.

FIG. 5 is a mixture of a front view and a cross-sectional view similar to FIG. 4, showing the guide pulley being removed upward.

FIG. 6 is an enlarged detail view of the cross section at the position of the groove, showing an empty space for the flange to pass through.

FIG. 7 is a schematic perspective view showing a guide rail having a groove and an I-shaped cross section.

FIG. 8 shows a cross section of the guide rail of FIG. 7 in the position of one groove, showing the guide pulley in rolling contact with the abdomen of the rail.

FIG. 9 is a view similar to FIG. 7, but showing the case of a guide rail with a trapezoidal abdominal part of the rail and a flat upper part.

FIG. 10 is a view similar to FIG. 8, but showing the case of a guide rail with a trapezoidal rail abdomen and a flattened upper part.

FIG. 11 is a cross-sectional view of a variant with a flat rail head and a flanged guide pulley.

[Procedural Amendment] Submission of translation of Article 34 Amendment of the Patent Cooperation Treaty

[Submission date] July 11, 2000 (2000.7.11)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

Title: Guide rail for guiding a vehicle along a course by a guide rail with detachable grooves, particularly for a guide device with an inclined pulley

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001] A rail that guides a vehicle following a course by a pulley includes a type of a section of the pulley,
There are various technical forms whose conditions differ depending on the inclination and shape and their general structure.

[0002] The present invention relates to a pulley functioning as a pair to provide reliable guidance, and more particularly to a guide rail with a detachable groove for the entire guidance device for a sloped and water-smooth vehicle. INDUSTRIAL APPLICABILITY The present invention is applied to a plurality of pulleys, each of which has a peripheral shoulder portion conventionally referred to as a flange, such as a railway wheel, in which a plurality of pulleys are inclined downward in a V-shape with their tips directed downward. But not limited to it.

In order to ensure guidance, both pulleys of a pair of inclined pulleys are in rotational contact with the side surface of the guide rail, and both pulleys may fasten the side surface of the rail.

There is a need for improved quality and safety of guidance. In prior practice, quality and safety were further improved by applying stresses such that the pulleys were in close rotational contact with the sides of the guide rail. It is often the case that a vertical load is pre-loaded, mainly for the purpose of preventing accidental and temporary lifting during operation.

[0005] In such a conventional practice, the lock is removed temporarily by increasing the distance between the pulleys, using the elasticity restoring force when the pulley approaches, or pulling up to release the lock. This is done by increasing the distance between the pulleys. Such operations include means for expanding the pulleys sufficiently to free them from the control of the pulleys on the rail, and the structure and structure of the pulley so that it can be removed with a single vertical force. is necessary.

[0006] The use of a pulley in which the peripheral projections or a part of the body moves below the line of the edge of the rail head allows a marked improvement in the quality and safety of the guidance. What is mainly treated here is a flanged pulley whose flange is guided below this edge by the inclined position of the traveling of the flanged pulley during traveling. Further, it may be a simple pulley that runs on the abdomen of the rail and under the head of the rail, for example.

[0007] If guidance is reliably performed by these pulleys, the projecting structure of the rail, that is, the side surface of the rail head, will prevent the pulley from lifting. In order to lift the pulley, it is necessary to change the inclination of the pulley, to increase the distance between the pulleys, and to provide a means for simultaneously or continuously performing both movements.

[0008] These functions are in fact performed by more complex implementations of guidance devices and by the addition of supplementary functions in difficult areas where the available volume is small.

[0009] Even if the creators of this kind of product are solely concerned with simplifying the means and functions, especially while respecting reliability and safety, public transportation and private enterprises may demand it. It is necessary that a plurality of conditions be satisfied at the same time in a proper guidance.

First of all, purchase and operation costs, which are considered important condition factors in purchase.

[0011] Next, the reliability and safety assurance that both pulleys do not physically come off the rails during the guidance operation.

Lastly, the ease of operation that makes the operation of removing the pulley from the rail and the subsequent operation of lifting the entire guidance device simple and quick.

The present invention is particularly useful, but not exclusive, when using a pair of pulleys with a V-shaped and flanged pulley to operate and remove the rails when stopped or in operation. It is an object to provide an advantageous solution in which the pulley can pass freely in operation.

Therefore, the present invention provides a guide rail with a detachable groove for a pair of inclined guide pulleys, which captures the side surface of the rail with two pulleys, and a flange for ensuring that each pulley does not come off the rail. The rails are provided with local removal areas from the rails for pulleys that are subject to lifting forces, and pulleys that travel in these areas as normal can travel. It is a guidance rail characterized by the above-mentioned.

Many advantages of the present invention relate to simplification of the configuration of the entire guidance system, reliability and simplification of the operation of attaching and detaching pulleys and rails, and reliability and simplification of a track circuit for automatic guidance.

First of all, since the means for increasing the distance between the two pulleys is eliminated, the entire guiding device becomes simpler.

Next, the operation of attaching and detaching the pulley to and from the rail simply generates a downward or upward vertical force,
It can be done with a single addition to a particular area that is not too wide with grooves, such that the grooves are visible or can be found by any other means.

Furthermore, the use of a collared pulley and a limited number of moving parts ensures reliability.

[0019] Furthermore, since the guiding mode can be changed only by inserting the grooved rail or a section of the rail into any arbitrary area, it is possible to assume a special area specially prepared for the attaching / detaching operation. It becomes unnecessary.

Finally, the realization of the grooves is simple, the depths of these grooves may be small and of limited length, so that the width of the track on which the pulley runs is reduced only slightly,
The groove does not hinder the movement of the guide pulley due to traveling.

[0021] Other features and advantages of the present invention will be discussed in the following description with reference to the accompanying drawings, but are not limited to that description.

FIG. 1 is a perspective view of a section of two grooved guide rails facing each other.

FIG. 2 is an enlarged perspective view of the rail of FIG. 1 in the area of the groove.

FIG. 3 is a cross-sectional view of the guide rail at the position of the groove.

FIG. 4 is a front view of two inclined guide sheaves and grooved rails that come into contact with the rails during running.

FIG. 5 is a mixture of a front view and a cross-sectional view similar to FIG. 4, showing the guide pulley being removed upward.

FIG. 6 is an enlarged detail view of the cross section at the position of the groove, showing an empty space for the flange to pass through.

FIG. 7 is a schematic perspective view showing a guide rail having a groove and an I-shaped cross section.

FIG. 8 shows a cross section of the guide rail of FIG. 7 at the position of one groove, showing the guide pulley in rotational contact with the rail abdomen.

FIGS. 9 and 10 are similar to FIGS. 7 and 8, respectively, but show a guide rail with a trapezoidal rail abdomen and a flattened top.

FIG. 11 is a cross-sectional view of a variant with a flat rail head and a flanged guide pulley.

FIG. 12 is an enlarged cross-sectional view of the modification shown in FIG. 11 at the position of the groove.

The guide rail according to the invention can take various technical forms. The general idea of the invention is to assume at least one lateral recess in the outwardly open rail at the superstructure or rail abdomen on the local area of the rail, and to set the distance between the two pulleys. One of the guide pulleys can pass across the recess during the lifting motion of the arm supporting the pulley to prevent any motion of expanding or changing the slope. The length of these grooves may vary as the mounting or dismounting operation is performed during standstill or during operation.

The guide rail of the present invention has various technical forms of the main body 1. The body always consists of the components normally used for rails, namely the base plate 2 with the underlying lower plane. This bottom plate is extended by a rail abdomen 3, at the end of which a rail head 4 is provided.

The shapes of the bottom plate 2 and the rail abdomen 3 are relatively ordinary.

Conversely, the shape of the rail head in the first variant FIGS. 1 to 6 is considered completely original.

These shapes are constituted by two symmetrical sides 5 and 6 bulging convexly,
The two side faces are connected linearly at their upper part by a flat or lightly convex bulging linear connecting area 7 forming the center of the rail tread 8.

In the space, the bulge of each side surface is constituted by a continuation of two slopes having opposite slopes, and the two slopes are separated by a centrally protruding central projection 9 or 10. Desirably, these slopes and the central projection are curvedly coupled between and adjacent to each other by a rounded portion 11 or 12 that linearly expands into space.

The upper part of each side is formed in accordance with an upper running slope 13 or 14 which respectively constitutes a running track for one of the pulleys. Each side surface extends downwardly via a bulging central projection 9 or 10 followed by an oblique lower slope of a stop 15 or 16 which forms a side projection on each side. Upper running slope 13
Or it is opposite to the inclination of 14. Each lower slope of the stop, at its end,
It has a connecting portion that forms a joint with the rail abdomen 3. Each runway along the rotating upper slope 13 or 14 slopes downwards toward the outside of the rail, while the lower slope 15 or 16 of the stop slopes upwards toward the outside of the rail. ing.

Although not particularly limited, the structure of this rail is particularly suitable for guidance, and the guidance is made up of a pair of pulleys 17 and 18 that are horizontal or V-shaped inclined. The pulley is pointed downwards and is provided with collars 19 and 20, that is, the large outer surface of the pulley has an outer annular shoulder, whereby the rail head 4 The contact surface of the stop with the side surface of the stop is configured, thereby limiting sideslip. This construction prevents the pulley from shifting in the transverse or vertical direction, as well as accidental lifting of the entire guidance system.

These flanges 19 and 20 are respectively provided on the lower surface of the rail, that is, on the lower slope 15
Alternatively, it is possible to rotate and contact with 16.

According to the preferred embodiment shown in the figures, the structure of the convex bulge at the end of each side is complementary to the cross-sectional shape of the joint between the tread and the collar of each guide pulley. .

The guide sheaves 17 and 18 are supported by a group of guide devices (not shown) with mechanical support formed from liftable pivot arms.

An essential feature of the invention is that the location of the attachment / detachment area is specified, each area being realized as at least one recess on at least one side of the rail head 4. .

More specifically, at least one, and preferably two, opposed grooves 2
1 and 22, each formed as a recess or a linear side cutout, the bottom 23 of which is not necessarily but flat, for example, the bottom of which is convex on the rail head 4. Are formed laterally in at least one mass of the flank side, with a limited depth, but when lifted, two opposite pulley flanges without altering the appearance, in particular the slope or spacing It is important that the lower part of the 19 or 20 or both grooves be deep enough to pass through.

The depth of the groove leaves enough space above the rail head for the guide pulley to rotate without hindrance. Therefore, the depth of the groove should not significantly reduce the width of the runway of the pulley.

The bottom 23 of the groove may be flat or may be concavely rounded according to an opening shaped to allow the portion of the collar that moves vertically or laterally to the groove to pass vertically. May take on.

The flat-shaped groove with a bottomed groove has two longitudinal ends, each of which has a gradual slope or concave radius connecting with the side of the rail. Connected to the entry ramps 24 and 25 according to the ramped ramp surface.

The length of the bottom of each groove depends on its intended purpose. When performing the attachment / detachment work at the time of stop, the length of the groove is as short as possible, that is, it slightly exceeds the functional necessity for the flange to pass without changing the inclination of the pulley when lifting. Would be desirable.

When the attaching / detaching operation is performed during the operation, it is desirable to perform the attaching / detaching operation at a low speed, but the length of the groove is longer, and the length of the groove is in accordance with the stroke line followed during the ascent or descent time of the entire guiding device. It is important that the area of lifting or lowering of the guide arm is as limited as possible in the space.

If a lifting or pulling force is already applied shortly before reaching the groove,
It is conceivable to provide a shorter groove for the attaching / detaching operation.

According to the present invention, the groove reduces the width of the rail enough to allow the guide arm to be raised or lowered without having to change the inclination relative to the pulley or unlock each other. . If the width of the rails in these areas is minimal, a simple vertical movement will make it easy to remove or install the pulley in any case.

The limit trajectory at which the end of the pulley is lifted is marked by a vertical dashed line in FIG.

In a variant that detaches during operation, it is important to provide an exit slope for the groove, which is designed to act as a runway for the pulley as the pulley moves out of the groove. The same is true for the groove entrance. Of course, if performed during operation, the shape of the bottom of the groove must be adapted to its mounting and dismounting movement.

So far, mainly two opposing grooves have been discussed.
Of course, the present invention is also directed to variations of a single groove.

Various technical forms can be used for the cross section of the rail. Some of these various forms relate to well-known forms, and some so far relate to original forms.

For example, the guide rails shown in FIGS. 7 to 12 are I-shaped in cross section and have a flat rail head 26 of a type having a flat running tread, and another cross section is shown in FIGS. Other variations are shown that are generally the same, but differ slightly by the trapezoidal rail abdomen 27.

In rails of this type of cross section, single guide sheaves 28 and 29 run on the side of rail abdomen 3 or 27. In order to ensure guidance accuracy, it is advisable to apply stress to the pulleys by bringing the pulleys closer to each other.

When the cross section is I-shaped, the rail is horizontal, and when the cross section is the trapezoidal rail abdomen 27, it is inclined.

In these two variants, on the upper part of the flat tread 26 serving as the rail head, a groove is formed in a transversely cut-out shape at the recessed portions 30 and 31 arranged opposite to each other. Can be Contrary to the variant described above, in the first case up to the junction with the upper extension of the rail abdomen, and in the second case the innermost edge of each pulley in the running position upwards The depth of the groove can and must be extended to the point where it is projected vertically. This defines the remaining portion 32 of the rail head at right angles to the grooves 30 and 31.

Again, the entry and exit slopes and the bottom of the groove can also be curved, for example according to a concave radius, as shown in FIG.

An overall view of another variation of the flat rail head is shown in FIG.
As shown in FIG. This variant is used with guide sheaves 17 and 18 with flanges 19 and 20 similar to those already described.

Each guide pulley runs on the area of the upper ridge 33 or 34 of the adjacent area minimum side 35 or 36 of the flat rail head 26 realized in this variant formed as a flat tread. The guide pulley is a flange 19 or 20 of each guide pulley.
Are tilted to be below the lower ridge corresponding to the adjacent area minimum side surface 35 or 36, resulting in a similar difficulty of lifting as solved by the present invention.

As mentioned above, the presence of the grooves 30 or 31 allows the pulleys to be lifted while increasing the spacing between the pulleys and keeping the inclination unchanged.

The figure shows the relative depth of the groove, and the straight line shown by the broken line shows the limit trajectory for lifting the lower end of the flange during the lifting operation.

In this variant, the run of the pulley is no longer on the abdominal side of the rail, but on the side of the flat tread 26 rounded for this purpose.
And 36 on the upper edge.

Many other technical forms are conceivable. I cannot show everything. All of them are included in the frame of the present invention as long as they have a detachable groove.

[Brief description of the drawings]

FIG. 1 is a perspective view of a section of two grooved guide rails facing each other.

FIG. 2 is an enlarged perspective view of the rail of FIG. 1 in the area of the groove;

FIG. 3 is a cross-sectional view of the guide rail at the groove position.

FIG. 4 is a front view of two skewed guide pulleys and grooved rails that come into contact with the rails during running.

FIG. 5 is a mixture of a front view and a cross-sectional view similar to FIG. 4, showing the guide pulley being removed upward.

FIG. 6 is an enlarged detail view of the cross section at the position of the groove, showing an empty space for the flange to pass through.

FIG. 7 is a schematic perspective view showing a guide rail having a groove and an I-shaped cross section.

FIG. 8 shows a cross section of the guide rail of FIG. 7 in the position of one groove, showing the guide pulley in rolling contact with the abdomen of the rail.

FIG. 9 is a view similar to FIG. 7, but showing the case of a guide rail with a trapezoidal abdominal part of the rail and a flat upper part.

FIG. 10 is a view similar to FIG. 8, but showing the case of a guide rail with a trapezoidal rail abdomen and a flattened upper part.

FIG. 11 is a cross-sectional view of a variant with a flat rail head and a flanged guide pulley.

[Procedure amendment]

[Submission date] February 22, 2001 (2001.2.22)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 17

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0067

[Correction method] Deleted

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] Fig. 2

[Correction method] Change

[Correction contents]

FIG. 2

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Claims (20)

[Claims] 1. A guide rail for guiding a vehicle along a course by a set of guide devices along the rail, said guide device comprising a pair of inclined or horizontal pulleys at running-guiding contact on the rail. A guide rail formed with a bottom plate (2), a rail head (4) and an abdomen (3) extending to the runway for each guide pulley, wherein at least one of the rails is attached to and detached from the guide rail. For the purpose of providing a passageway for the two guide sheaves, the rail head is locally narrowed at least at one point so that it is directed towards the center of the rail head (4) with two side projections. A guide rail, characterized in that it has at least one guide pulley attachment / detachment section comprising a bent part. 2. A pulley runway also exists in a narrowed area for at least one guide pulley to pass across a detachable rail.
Guide rail described in. 3. The runway of the guide pulley in the narrowed area is an extension of the material existing between the inner side wall of the narrowed area and the upper median area of the rail head. The guide rail according to claim 2. 4. The guide rail according to claim 1, wherein the one or more narrowed portions are local recesses toward the center of the rail head. 5. The guide rail according to claim 4, wherein the recess is a side groove. 6. The guide rail according to claim 5, wherein the recess is a side groove having a flat bottom. 7. The guide rail according to claim 6, wherein the flat bottom is parallel to the overall longitudinal direction of the rail abdomen. 8. The guide rail according to claim 1, wherein the grooves are opposite each other on both sides of a median longitudinal center plane of the rail. 9. The guide rail according to claim 1, wherein there is only one narrowed portion in each of the landing areas. 10. The guide rail according to claim 1, wherein the length of each groove is slightly greater than the passage area of the peripheral shoulder or collar of the pulley. . 11. The guide rail according to claim 1, wherein each groove is long enough to allow a detachment operation during operation. 12. The longitudinal ends of the groove are two transverse terminal ramps which form an upward or downward pulley runway to guide the pulleys to their respective positions after the on / off operation. The guide rail according to any one of claims 1 to 11, wherein the guide rail is provided. 13. The guide rail according to claim 12, wherein the surface of the transverse end slope is curved. 14. The guide rail according to claim 13, wherein the curved surface is concave and rounded. 15. A rail head (4) is formed of two convexly bulging symmetrical side surfaces (5) and (6), and upper portions of both symmetrical side surfaces serve as a runway of the inclined guide pulley. And joined together by a connecting area to form an upper tread together, with both sides continuing down through a bulging central projection, followed by a connecting area between the slope of the stop and the abdomen. The guide rail according to any one of claims 1 to 14, wherein: 16. A guide rail according to claim 1, wherein the rail head takes the form of a flat tread. 17. The guide rail according to claim 16, wherein the guide pulley runs on the upper longitudinal edge of the flat rail head. 18. The guide pulley runs on an abdomen of a rail.
The guide rail according to any one of claims 1, 4 to 9, and 16. 19. The rail abdominal section has a rectangular cross section.
19. The guide rail according to 6 or 18. 20. A cross-section of a rail abdomen having a trapezoidal shape.
Or the guide rail according to 18.